Has potential
There are some things u really need to work hard on to make the game playable.
First of all i hate the fact that u can only see one background until u completely moved outa it. In the next background u will get surprised with a new situation. For example u run outa the first screen but then immediately fall into spikes in the second one because u never saw them comming.
Then i thought the music was superannoying. It were good songs but after u died the gamesoundtrack switches immediately to the disco billy jean one. This is kinda amateuristic. Make an animation when u die so u can see what killed u and then switch soundtracks.
Also it was hard to see what were enemies and what were powerups to catch. How the hell are u supposed to see that a cloud is dangerous?
Another point is that when u catch powerups u see gigantic bonuses in the screen which confuse u so u can fall in the spikes again
And last i thought the gamespeed was too fast. I know this is doubtable, but because of the fast speed i could barely enjoy the nice background drawings and other things u implemented. It also made the game extremely hard.